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vue element 多图片组合预览的实现

作者:花归去

本文主要介绍了vue element多图片预览实现的相关资料,最近的项目中有图片预览的场景,本文就来介绍一下如何使用,感兴趣的可以了解一下

本文主要介绍了vue element 多图片组合预览,分享给大家,具体如下

定义组件:preview-image

<template>
    <div>
        <div class="imgbox">
            <div
                class="preview-img"
                :class="boxClass"
                v-if="
                    Imageslist == 3 ||
                    Imageslist == 5 ||
                    Imageslist == 7 ||
                    Imageslist == 8 ||
                    Imageslist >= 9
                "
            >
                <div
                    class="img-box"
                    v-for="(item, index) in imgArr"
                    :key="index"
                >
                    <div v-for="(_item, _index) in item" :key="_index">
                        <div class="box-image" v-if="_index <= 3">
                            <el-image
                                ref="preview"
                                fit="cover"
                                :preview-src-list="previewImages"
                                :src="_item"
                            />
                            <div
                                class="box-image-shade"
                                @click="imglistclick()"
                                v-if="item.length > 4 && _index == 3"
                            >
                                <div class="shade-more">
                                    <i class="el-icon-d-arrow-right"></i>
                                    <i
                                        class="arrow"
                                        custom-style="margin-left:-16px;"
                                    ></i>
                                </div>
                                <div>{{ Imageslist }}张</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div :class="boxClass" class="preview-img" v-else>
                <div
                    v-if="
                    Imageslist != 3 ||
                    Imageslist != 5 ||
                    Imageslist != 7 ||
                    Imageslist != 8 ||
                    Imageslist <= 9
                "
                    class="box-image"
                    v-for="(item, index) in imgArr"
                    :key="index"
                >
                    <el-image fit="contain" :src="item" /> 
                </div>
            </div>
        </div>
    </div>
</template>
<script>
export default {
    props: {
        previewData: {
            type: Array,
            default: () => {
                return [];
            },
            //     observer: function (newVal, oldVal) {
            //         console.log("newVal, oldVal", newVal, oldVal);
            //         const previewImages = [];
            //         newVal.map((item) => {
            //             previewImages.push(item);
            //         });
            //         this.setData({
            //             previewImages,
            //         });
            //         this.formatImageList(newVal);
            //     },
        },
    },
    watch: {
        previewData: function (newVal, oldVal) {
            console.log("newVal, oldVal", newVal, oldVal);
            const previewImages = [];
            newVal.map((item) => {
                previewImages.push(item);
            });
            this.previewImages = previewImages;
            this.formatImageList(previewImages);
            console.log("222222", newVal.length);
            this.$nextTick(() => {
                this.Imageslist = newVal.length;
            });
            // this.formatImageList(newVal);
        },
    },
    data() {
        return {
            previewImages: [],
            imgArr: [],
            boxClass: "one",
            Imageslist: 0,
        };
    },
    mounted() {},
    methods: {
        imglistclick() {
            console.log("图片", this.$refs.preview[8]);
            this.$refs.preview[8].clickHandler();
        },
        formatImageList(imageArr) {
            //     console.log("imageArr---", imageArr);
            console.log("长度:", imageArr.length);
            const arrLength = imageArr.length;
            if (arrLength == 1) {
                // this.setData({
                //     imgArr: imageArr,
                //     boxClass: "one",
                // });
                this.imgArr = imageArr;
                this.boxClass = "one";
            }
            if (arrLength == 2) {
                // this.setData({
                //     imgArr: imageArr,
                //     boxClass: "two",
                // });
                this.imgArr = imageArr;
                this.boxClass = "two";
            }
            if (arrLength == 3) {
                const firstArr = [...imageArr.splice(0, 1)];
                const threeArr = [[...firstArr], [...imageArr]];
                // this.setData({
                //     imgArr: threeArr,
                //     boxClass: "three",
                // });
                this.imgArr = threeArr;
                this.boxClass = "three";
            }
            if (arrLength == 4) {
                // this.setData({
                //     imgArr: imageArr,
                //     boxClass: "four",
                // });
                this.imgArr = imageArr;
                this.boxClass = "four";
            }
            if (arrLength == 5) {
                const firstArr = [...imageArr.splice(0, 1)];
                const fiveArr = [[...firstArr], [...imageArr]];
                // this.setData({
                //     imgArr: fiveArr,
                //     boxClass: "five",
                // });
                this.imgArr = fiveArr;
                this.boxClass = "five";
            }
            if (arrLength == 6) {
                // this.setData({
                //     imgArr: imageArr,
                //     boxClass: "six",
                // });
                this.imgArr = imageArr;
                this.boxClass = "six";
            }
            if (arrLength == 7) {
                const firstArr = [...imageArr.splice(0, 1)];
                const secondArr = [...imageArr.splice(0, 4)];
                const sevenArr = [[...firstArr], [...secondArr], [...imageArr]];
                console.log("sevenArr", sevenArr);
                // this.setData({
                //     imgArr: sevenArr,
                //     boxClass: "seven",
                // });
                this.imgArr = sevenArr;
                this.boxClass = "seven";
            }
            if (arrLength == 8) {
                const firstArr = [...imageArr.splice(0, 1)];
                const secondArr = [...imageArr.splice(0, 4)];
                const eightArr = [[...firstArr], [...secondArr], [...imageArr]];
                console.log("eightArr", eightArr);
                // this.setData({
                //     imgArr: eightArr,
                //     boxClass: "eight",
                // });
                this.imgArr = eightArr;
                this.boxClass = "eight";
            }
            if (arrLength >= 9) {
                const firstArr = [...imageArr.splice(0, 1)];
                const secondArr = [...imageArr.splice(0, 4)];
                const nineArr = [[...firstArr], [...secondArr], [...imageArr]];
                console.log("nineArr", nineArr);
                // this.setData({
                //     imgArr: nineArr,
                //     boxClass: "nine",
                // });
                this.imgArr = nineArr;
                this.boxClass = "nine";
            }
        },
    },
};
</script>
<style lang="scss" scoped>
.spanimg {
}
.imgbox {
    width: 675px;
    padding-bottom: 50px;
    // background: red;
}
.preview-img {
    padding: 16px 5px 0;
    box-sizing: border-box;
}
.box-image {
    margin-top: 10px;
    width: 315px;
    height: 315px;
    border-radius: 6px;
    overflow: hidden;
}
.box-image .el-image {
    width: 100%;
    height: 100%;
    // width: 100px;
    //     height: 100px;
    display: block;
}
.two {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.two .box-image + .box-image {
    margin-left: 12px;
}
.three,
.five,
.seven,
.eight,
.nine {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.three .img-box + .img-box {
    margin-left: 12px;
}
.three .img-box + .img-box .box-image {
    width: 154px;
    height: 153px;
}
.four {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
}
.four .box-image {
    width: 205px;
    height: 205px;
    margin-right: 14px;
    margin-top: 14px;
}
.five .img-box + .img-box {
    margin-left: 12px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.five .img-box + .img-box .box-image {
    width: 153px;
    height: 153px;
}
.six {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}
.six .box-image {
    width: 205px;
    height: 205px;
    margin-top: 14px;
}
.seven,
.eight,
.nine {
    flex-wrap: wrap;
}
.seven .img-box:nth-child(2),
.eight .img-box:nth-child(2),
.nine .img-box:nth-child(2) {
    margin-left: 12px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    width: 315px;
}
.seven .img-box:nth-child(2) .box-image,
.eight .img-box:nth-child(2) .box-image,
.nine .img-box:nth-child(2) .box-image {
    width: 153px;
    height: 153px;
}
.seven .img-box:nth-child(3) {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.seven .img-box:nth-child(3) .box-image + .box-image {
    margin-left: 12px;
    margin-top: 14px;
    width: 315px;
}
.eight .img-box:nth-child(3),
.nine .img-box:nth-child(3) {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.eight .img-box:nth-child(3) .box-image {
    width: 206px;
    height: 206px;
    margin-top: 14px;
}
.nine .img-box:nth-child(3) .box-image {
    width: 152px;
    height: 152px;
    margin-top: 12px;
    position: relative;
}
.box-image-shade {
    width: 152px;
    height: 152px;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.55);
    text-align: center;
    font-size: 28px;
    font-weight: 500;
    color: #ffffff;
    line-height: 42px;
    padding-top: 36px;
    box-sizing: border-box;
}
</style>

 父组件中引用子组件preview-image

import previewimage from "../../components/commonModule/preview-image.vue";
<previewimage :previewData="limagePreviewArn"></previewimage>

data中定义变量:limagePreviewArn 

 this.limagePreviewArn = [
            "https://fuss10.elemecdn.com/a/3f/3302e58f9a181d2509f3dc0fa68b0jpeg.jpeg",
            "https://img01.yzcdn.cn/vant/apple-1.jpg",
            "https://img01.yzcdn.cn/vant/apple-2.jpg",
            "https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg",
            "https://fuss10.elemecdn.com/1/8e/aeffeb4de74e2fde4bd74fc7b4486jpeg.jpeg",
            "https://fuss10.elemecdn.com/9/bb/e27858e973f5d7d3904835f46abbdjpeg.jpeg",
            "https://fuss10.elemecdn.com/d/e6/c4d93a3805b3ce3f323f7974e6f78jpeg.jpeg",
            "https://fuss10.elemecdn.com/3/28/bbf893f792f03a54408b3b7a7ebf0jpeg.jpeg",
            "https://fuss10.elemecdn.com/2/11/6535bcfb26e4c79b48ddde44f4b6fjpeg.jpeg",
            "https://fuss10.elemecdn.com/1/34/19aa98b1fcb2781c4fba33d850549jpeg.jpeg",
            "https://img01.yzcdn.cn/vant/cat.jpeg",
        ];

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